Construction of hinges for connecting the warping planes to the wings or fixed planes in aircraft



I 1. 1. A. E. SCHNEIDER. CONSTRUCTION OF HINGES FOR CONNECTING THEWARPING PLANEs TO THE WINGS 0R FIXED PLANES IN AIRCRAFT.

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Patented June 1, 1920.

3 SHEETS-SHEET 2.

1.1. M. A. E. SCHNEIDER. CONSTRUCTION OF HINGES FQR CONNECTING THEWARPING PLANES TO THE W INGS QR FIXED PLANES IN AIRQRAFT. APPLICATIONFILED Jun/'2. 1919.

Patentd June 1, 1920.

3 SH EETS-SHEET 3 UNITED STATESFFPVATENT orrlcn.

JEAN JULES MARIE ANTOINEEUGENE'SGHNEIDER, oF-PARIS, FRANCE;

CONSTRUCTION or I-IINGES ron CONNECTING THE wARrING PLANES 0R FIXEDPLANES IN AIRCRAFT.

Application filed July 2, 1919.

To all whomz't may concern Be it known that I, JEAN JULns MARI ANTOINEEUGENE SoI-INEIDER, a resident of Paris, in the Republic of France, haveinvented an Improved Construction of Hinges for Connecting the WarpingPlanes to the Wings or Fixed Planes in Aircraft, which invention isfully set forth in the following specification.

Hitherto the warping planes of aeroplanes or aircrafts have been hingedto the wings or fixed planes of those flying machines either by means ofcontinuous hinges or by means of a plurality of single hinges.

In aircrafts of large size the pins of such hinges are subjected toconsiderable strain owing, to the height or depth of curvature of thewings at their center relatively to their ends. The result of this is torapidly deform the hinges which are thereby prevented from working inthe proper manner.

The present invention has for its object to provide an improvedconstruction of hinge for connecting the warping planes to the wings,which is particularly adapted for use in aircrafts of large size, andwhich is completely free from the drawback above stated.

For this purpose the improved hinge is constituted essentially by aplurality of cardan couplings suitably distributed along the length ofthe warping planes; the pivot pins of these cardan couplings areconstituted respectively by a pivot pin movable in a bearing carried bythe wing, and by a pivot pin movable in bearings carried by the warpingplane.

A constructional form of this invention is illustrated by way of examplein the accompanying drawings in which:

Figure 1 is a partial diagrammatic plan of an aeroplane wing and of thewarping plane hinged to the latter; this plan shows the location of theseveral separate hinges.

Fig. 2 is a vertical section on the line II-II of Fig. 1 showing thedetails of one hinge.

Fig. 8 is a vertical section on the line IIIIII of Fig. 2.

Fig. 4 is a front view of the bearing supporting the pivot pin of thecardan coupling carried by the wing.

Each hinge is constituted by a cardan coupling, the'horizontal pivot pinA of which is constituted by a pivot pin movable in a bear-Specification of Letters Patent;

Serial No. 308,266.

ing B fixed to the rear longitudinal G of the wing. The pivot pin A endsin a block or fork the limbs cv-a of which carry a horizontal pivot pinor pintle D at right angles to the pivot pin A and upon which a pivotpin E is engaged by means of an eye a formed at its center. This pivotpin is normally vertical and it is movable at its ends in bearings Ffixed to the longitudinal G of the warping plane.

It will be perceived that the warping plane can be inclined relativelyto the wing by rotating the pivot pins E around the hinge pins D. Themobility in the longitudinal direction of the warping plane relativelyto the wing is rendered possible by the rotation of the pivot pins A inthe bearings B. On the other hand the mobility of the pivot pins E inthe bearings F facilitates the carrying along of the warping plane bythe wing in the bending movements of the latter. The elementary movementof different amplitudes of the various sections of the wings can takeplace without undue fatigue of the hinge'pins D.

' What I claim is: V

1'. An improved construction of hinges for connecting the warping planesto the wings or fixed planes'of an aircraft, said improved constructionconsisting of a plurality of forks or blocks each projecting on ahorizontal pivot pin that is movable in a bearing formed on the wing,each fork supporting a horizontal hinge pin at right angles to the saidpivot pin, upon which there is engaged by means of an eye formed at itscenter, a pivot pin which is normally vertical and movable at its endsin bearings carried by the warping plane, whereby the warping plane ishinged to the wing or fixed plane by a series of cardan couplings whosepivot pins are capable of pivoting respectively in the r Patented June1,

TO T WINGS.

wing or fixed plane and in the warping plane.

2. An improved construction of hinges for connecting the warping planesto the wings or fixed planes of an aircraft, each hinge comprising ahorizontal pin mounted in one 3. An improved construction of hinges forA connecting the warping planes to the wings In testimony whereof I havesigned this or fixecl planes of an aircraft, each hinge specification b"1 v the other wing-member, and a pmtle ou r- EUGENE SCHNEIDER naled inboth of said pins to connect the same lVitnessesz v to permit eitherhorizontal or vertical pivot- ANDm Mos'rIoKnR, ing between the twowing-members. CHAS. P. PRESSLY.

